package util;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

/*
ID:     liluyan1
LANG:   JAVA
TASK:   XXX
*/
public class XXX {
  public static void main(String[] args) throws IOException {
    BufferedReader f = new BufferedReader(new FileReader("XXX.in"));
    PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(
                                      "XXX.out")));
    new XXX().solve(f, out);
    out.close();
    System.exit(0);
  }
       
  private void solve(BufferedReader f, PrintWriter out) throws IOException {
  }
       
  public int read(BufferedReader f) throws IOException {
    return Integer.parseInt(f.readLine());
  }
       
  public int[] read(BufferedReader f, int N) throws IOException {
    String[] t = f.readLine().split(" ");
    int[] a = new int[N];
    for (int i=0; i<N; i++) {
      a[i] = Integer.parseInt(t[i]);
    }
    return a;
  }
}

